Home / 5,220.75-7,830.32-1,522.60

Finding the Fourth Proportional to 5,220.75, 7,830.32 and 1,522.60

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Solution

The fourth proportional to 5,220.75, 7,830.32 and 1,522.60 is: 2,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.75 : 7,830.32 = 1,522.60 : x
  2. Step 2: Convert to fraction form
    5,220.75/7,830.32 = 1,522.60/x
  3. Step 3: Cross multiply
    5,220.75x = 7,830.32 × 1,522.60
  4. Step 4: Simplify right side
    5,220.75x = 11,922,426.61
  5. Step 5: Solve for x
    x = 11,922,426.61/5,220.75
  6. Step 6: Final answer
    x = 2,283.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.